This course enables the experienced Java developer to use the Spring application framework to manage objects in a lightweight "IoC" (inversion-of-control) container. Spring is a far-reaching framework that aims to facilitate all sorts of Java development, including every level of multi-tier distributed systems. Here we focus on the "Core" module of the framework, developing facility in instantiating, configuring, and assembling Spring beans for various purposes.

The Core module gives the developer declarative control over object creation and assembly; this is useful for any tier of any Java application. So is Spring's validation framework, and so we study not only the assembly of object graphs, but also how to apply validation logic to those objects and to report errors to the user or to another software component.

Class Goals

Understand the scope, purpose, and architecture of Spring
Use Spring's bean factories and application contexts to declare application components, rather than hard-coding their states and lifecycles
Use dependency injection to further control object relationships from outside the Java code base
Use annotations to take advantage of Spring post-processors for automated bean instantiation and wiring
Create validators for business objects, and associate them for application-level and unit-testing uses

Class Outline

Overview of Spring
1. Java EE: The Good, The Bad, and the Ugly
2. Enter the Framework
3. Spring Value Proposition
4. The Spring Container
5. Web Applications
6. Persistence Support
7. Aspect-Oriented Programming
8. The Java EE Module(s)
9. Integrating Other Frameworks
The Container
1. JavaBeans, Reconsidered
2. The Factory Pattern
3. Inversion of Control
4. XML View: Declaring Beans
5. Java View: Using Beans
6. Singletons and Prototypes
Instantiation and Configuration
1. Configuring Through Properties
2. Configuration Namespaces
3. The p: Notation
4. Bean (Configuration) Inheritance
5. Configuring Through Constructors
6. Bean Post-Processors
7. Lifecycle Hooks
8. Integrating Existing Factory Code
Dependency Injection
1. Complex Systems
2. Assembling Object Graphs
3. Dependency Injection
4. Single and Multiple Relationships
5. The Utility Schema
6. Bean Aliases
7. Inner Beans
8. Autowiring
9. Auto-Detecting Beans
10. @Autowired Properties
11. Best Practices with Spring 2.5 Annotations
Assembling Object Models
1. Collections and Maps
2. Support for Generics
3. The Spring Utility Schema (util:)
4. Autowiring to Multiple Beans
5. Order of Instantiation
6. Bean Factory vs. Application Context
Validation
1. Validators
2. The Errors Object
3. ValidationUtils
4. Error Messages and Localization
5. Nested Property Paths

Class Materials

Each student in our Live Online and our Onsite classes receives a comprehensive set of materials, including course notes and all the class examples.

Class Prerequisites

Experience in the following areas is required:

Java programming
Basic knowledge of XML

Technical Requirements

Our computer technical requirements and setup process is easy, with support just a click away.

Onsite and Instructor-led Online course technical requirements and setup instructions.
WebEx system requirements for Instructor-led Online delivery option.

Java ^®, all Java-based marks, Hibernate ^®, and all Hibernate-based marks are trademarks or registered trademarks of Sun Microsystems, Inc. or its subsidiaries in the U.S. and other countries.

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We have trainers all over North America.
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